Silentnight Memory 1400 Pocket Mattress
The Silentnight Memory 1400 Pocket is a hybrid mattress that pairs a memory foam comfort layer with 1400 Mirapocket springs, which means you get pressure relief on top and independent support beneath.
- Firm support for back & front sleepers
- Minimises partner disturbance
- 60-night trial & 5-year guarantee
£349
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Silentnight rates the Memory 1400 Pocket as firm, so it suits people who like a supportive, less sinky feel, although lightweight side sleepers may find it a little too solid at the shoulder. At 25cm deep it should work with standard fitted sheets. It comes in five UK sizes, from single up to super king, and Silentnight backs it with a 60-night trial and a 5-year guarantee.
Mattress specifications
Firmness
Firm
Type
Hybrid
Depth (cm)
25
Number of Layers
2
Trial Period (nights)
60
Warranty (years)
5
Price Range
£349 to £661
Best Sleeping Position(s)
Back Sleeping
Stomach Sleeping
Certifications
Assessed from Silentnight's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
This mattress makes sense if you want memory foam comfort without the fully sunk-in feel that all-foam models can give. The 1400 Mirapocket springs respond independently to movement, which means less disturbance from a restless partner and better spinal alignment than a basic open-coil design. The firm rating suits back and front sleepers, and heavier bodies that need extra pushback. It sits at an accessible price for a pocket-sprung hybrid, and the 60-night trial gives you a proper chance to test it at home. Silentnight is a long-established UK name, and the 5-year guarantee covers manufacturing faults for a reasonable stretch, though some rivals do offer longer.
Key features & layer details
Memory Foam
A memory foam layer that moulds to your body, which means pressure is eased from muscles and joints as you settle in. Expect a gentle cradle rather than a deep sink, given the firm overall feel.
Mirapocket Springs
1400 Mirapocket springs sit beneath the foam, each responding independently to your movement. In practice that means targeted support along your spine and less motion transfer across the bed.
Layer details from silentnight.co.uk product page, September 2026.
Best suited for?
Back sleepers
The firm rating and 1400 Mirapocket springs give targeted support along the spine, which means a steady, level feel when lying face up.
Front sleepers
A firm feel with only a gentle memory foam cradle keeps your midsection from sinking too far, which suits sleeping face down.
Heavier sleepers
The firm sprung base under the memory foam gives extra pushback, which means heavier bodies are held up rather than sinking through.
Couples
Each of the 1400 Mirapocket springs responds independently, which means less motion transfer across the bed when one of you is restless.
Combination sleepers
Memory foam over pocket springs gives a gentle cradle rather than a deep sink, which makes changing position during the night easier.
If you sleep on your side and weigh less, a firm mattress like this may not let your shoulder and hip sink in enough, which can cause pressure points. It's also not ideal if you love a plush, enveloping feel, as the memory foam layer sits over a firm sprung base.
Save on an earlier or ex-display model
Some retailers still sell the earlier version of this mattress, or ex-display and returned stock at a lower price. These are the sizes where it costs less than the current model's best price.
Silentnight Memory 1400 Pocket Mattress
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FAQ's
How firm is the Silentnight Memory 1400 Pocket mattress?
Silentnight rates it as firm. That suits back and front sleepers who want plenty of support, though the memory foam top layer softens the surface slightly. Lightweight side sleepers may find it a touch too firm for comfortable pressure relief at the shoulder.
Does the Silentnight Memory 1400 come with a trial period?
Yes. Silentnight offers a 60-night trial, so you can sleep on it at home and return it if it doesn't suit. It also comes with a 5-year guarantee covering manufacturing faults.
How deep is the Silentnight Memory 1400 Pocket mattress?
It's 25cm deep, which is a fairly standard depth for a hybrid. Most regular fitted sheets should fit without any trouble.
What sizes does the Silentnight Memory 1400 come in?
Five UK sizes: single, small double, double, king and super king.
How long does delivery take for the Silentnight Memory 1400?
Silentnight lists delivery within 14 days. That's slower than some brands manage, but it gives you time to arrange disposal of your old mattress.
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